Building Web Applications in PHP Week 7 Practice Quiz Answer
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Building Web Applications in PHP Week 7 Practice Quiz Answer
Visit this link: Building Web Applications in PHP Week 6 Practice Quiz Answer
Functions
Question 1)
Why should you use functions?
- Organize your code
- Break complex code into logical chunks
- Avoid repetitive code
- To make it harder for others to use your code
Question 2)
Which keyword defines a new function?
- new functions
- new
- define
- function
Question 3)
Return values are type-specific in php functions (a function only returns a value of a specified data type.)
- True
- False
Question 4)
What output does the following code produce?
function double($val){ $val = $val * 2; return $val; } $val = 15; $dval = double($val); echo "Value = $val Doubled = $dval";
- Value = 15 Doubled = 15
- Value = Doubled =
- Value = 15 Doubled = 30
- Value = 30 Doubled = 30
Question 5)
Which keyword is used to use code from one php file into a different PHP file?
- add
- append
- point
- include
Question 6)
Which function prints out the internal configuration capabilities of your particular PHP installation?
- phpinfo()
- version()
- info()
- phpver()
Question 7)
Adding an ampersand ( & ) to a function parameter indicates that you are using call by [_____] for that parameter.
- reference
Question 8)
The keyword [_____] will expand the scope of a variable outside of its function.
- global
Question 9)
The [_____] function is used to check if a function already exists or not.
- function_exists
Question 10)
It is common to use uppercase and/or long names for global variables to avoid confusion or mistaken reuse.
- True
- False